Tungsten Carbide 3D Printer MK8 Extruder Nozzle, High Temperature Printing, Super Wear Resistant, 0.4mm/1.75mm

This is a great lifetime nozzle. I originally ordered my first one about a year ago. Installed on my Creality Ender 3 Pro. I screwed up the installation and severely clogged the nozzle along with lots of burned on filament. With the help of a heat oven, heat gun, nozzle pin, nylon filament and steel brush, I was able to make it good as new. Nothing can scratch it, so I took the chance, and it paid off. I have since upgraded to a Sprite extruder and installed this nozzle. The Sprite has a differently shaped nozzle, but the threads are compatible, and the silicon sock fits the MK 8 nozzle just fine. I have been printing for about 7 months with this nozzle using wood, glow in the dark, PLA, PETG and TPU filaments. It will not quit. Each time I purge filament, the nozzle pattern on the bed is a beautifully symmetrical circle. The filament comes out evenly every time and nothing I've tried can dull it yet. It has not clogged since the initial incident (my fault). Thermal conductivity is better than brass in my opinion and it does far better than steel because I don't have to dial up the heat block temperature to get results. It also seems to purge easily when I change filament without having to do cold pulls.There is one warning I must give. I have ordered two more of these because I am buying a dual extruder printer. I received one which was the actual product. The next one arrived and contained a used and blocked brass nozzle. I do not think Dawnblade did this on purpose. I believe someone returned the brass nozzle to get a refund and kept the tungsten one. Dawnblade didn't check that they had been ripped off and sent the returned item to me as new. I have returned it and have another on the way. I hope Dawnblade catches the thief.These are hard to get items. It can take some time to get stock in. Make sure the nozzle looks like the picture when you receive it and make sure the weight is heavy. That is the proof of a Tungsten Carbide nozzle. Test it right away to make sure it is the real thing. Nozzle temps should be similar to brass and they should hold up without wear with almost all filaments, including carbon added ones.Well worth the investment for a nozzle that will last. Just do an inspection as soon as you receive it.

Tested this nozzle before printing something big. Printed a benchy and the benchy that was printed was better than the nickle copper plated nozzle that came with the spider 3 hotend. Brass on the other hand, it looks very similar. I just printed something for over 14 hours and so far it prints really well compared to hardened steel.Only time will tell but so far so good, I only bought this nozzle because I just want to set it and forget it. I don't like changing nozzles. Call me lazy but got tired of changing nozzles from brass to hardened

This is a great replacement nozzle for anyone looking to skip replacing cheap nozzles or needing the hardness for abrasive materials. However, we don't know what grade of tungsten carbide this is. Nonetheless, it's safe to say this should be lasting years and years with the intended use. Also claims better thermal conductivity than brass but this shouldn't be the case. Tungsten carbide seems to be around 85 W/m.K, still better than steel or ruby. Would Recommend.

This is a size larger than most E3D V6 type hot ends use. SO the price is great, but beware the length is significantly different. You will gouge your bed if you don't account for the z-change and that may have to happen in the Flash, so better to just get the right size to begin with.

I bought this to print abrasive media, but it is hardened steel at best, and a scam at worst. I'm going to try it out, and I know tungsten can be mildly magnetic based on processing, however the strength of the magnetism is the same as my hardened steel nozzles, we shall see.